Drink lots of fluids, hot baths, rest if you can. I don't know what else to say.
I'm not jamming NA/AA down your throat but my addiction counselor said to me in the beginning when I was refusing/embarrassed to go and I used time as an excuse "did you find the time to use"? That struck home.
I too, have a lot of family responsibilities and sometimes I only get to a meeting once a week. But it's still once a week. It keeps me grounded and makes me feel safe.
Best of luck.